Part of Made in India,Design Innovation
Workshop,2015
A Fresh New Experience in
Project-‐Making and Learning
An infrared security alarm system is based on the detecBon of an intrusion caused by the interrupBon of an infrared light beam, which is invisible to naked eyes and emiEed by an infrared LED. This light falls upon a matched photodiode, which is in line of sight of the IR LED.
In this project, we will design two separate circuits: a transmiEer and a receiver. The
transmiEer circuit emits a conBnuous infrared beam to the photodiode in the receiver circuit. We keep the transmiEer and receiver circuits on a plane. When an obstacle comes in between the transmiEer and the receiver, the buzzer starts to beep. Even aMer the obstacle is removed, the buzzer conBnues to beep, due to the feedback system created using a relay.
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CoolJunk is India's fastest growing DIY (do-‐it-‐yourself) kits company focused on project-‐based learning in science, engineering and technology. Having 20,000 users in India, US, Singapore, Middle East and New Zealand, the CoolJunk kits are known for quality, innovaBon and high producBon value. CoolJunk has been featured in naBonal and internaBonal journals including Wallstreet, Yourstory, Hindu Business Line, NextBigWhat and was tagged as the coolest Indian start-‐up in IAN Bootcamp-‐2011.
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